For a lot of folks in the modern day, knitting is more a relaxing hobby than a household necessity. However, not too long ago, this needlecraft was a genuine -- and effective! -- tool for spies. In the first part of this two-part series, Ben, Noel and Max dive into the fascinating history of knitting as espionage.

CLASSIC: Prohibition, Prescriptions and the Rise of 'Medicinal' Booze
31:41

Fort Sauerkraut: North Dakota’s Strange, Ill-Planned Origin Story
38:02

The Bizarre Tale of the 1909 Catnip Riot
35:52